Residence panel board



Ap il 1933 c. E. HANNY RESIDENCE PANEL BOARD 2 Stunts-Sheet 1 FiledApril 21, 1928 Mull INVENTOR, Char-1e E. Hanny, f ATTORNEY.

Apr-i118, 1933. c. E. HANNY 1,904,135

RESIDENCE PANEL BOARD Filed April 21, 1928 2 Sheds-Sheet 21rIllzllllzlllililllllllla IIIIlllllIIIIIIIIIIIII'IIIIII 1;HllIIIIIIIIIIIIIIIIIIIIIIE Patented Apr. 18, 1933 A UNITED STATES,PATENT orrrcs CHARLES E. HARRY, OI UNIONVIILE, CONNECTICUT, 8101103 nornmm EEO- v TRIO mUIACTURING DION OF CONNECTICUT COIIPANY, OFPLLDTVILLE, CONNECTICUT, A. GOBPORA- BEDDING! PANEL BOARD Applicationfiled April 21,

My invention relates particularly to what are commonly known as deadfront panel boards and similar constructions which in clude a box orreceptacle intended to be set into the wall and contain circuitprotecting devices, such as, plug fuses.

One object is to provide a construction in which all of the electricalparts and connections are completely housed so as to accidental contactor tampering.

Another object is to provide a construction of this character to whichaccess can be readily had by authorized persons when necessary but inwhich all of the live wires and terminals are normally inaccessible.

Another object is to provide a construction of this character which maybe readily and. conveniently installed.

Another object is to provide an enclosed panel board construction, theparts of which may be readily installed from time to time as thebuilding is being erected, for instance, so

prevent that the box may be installed, the conduitsconnected, and thewires run in to the empty box after which the fuse'units may be addedand secured in position and the cover attached.

Another object is to provide a construction in which the mainvcover, thefuse door and the guard member are secured together as a unit, whichunit may be readily removed for..inspection, wiring, or replacement ofparts.

Another object is to provide a neat, cheap, and practical door an frameconstruction ap licable to devices of this character.

' can be stamped from the are riveted to the cover p nother object is toprovide a construction in which an insulated guard member is secured tothe main cover as a unit and in which the guard member is recessed toform a fuse chamber entirely surrounded by ntegral walls the edges ofwhich also function as a rabbet for the fuse door.

In carrying out the invention in its preferred manner the main cover anddoor are so designed that the door with integral pivots plate which isto form the cover. Se arate pieces are provided to form'the hinge Eearinand these pieces ate in proper; posims. Serial 30. 371.85%.

tions to receive the hinge pintles oi the door. The guard member isformed of insulating material and secured to the baolr of the coverplate so as to provide a chamber for the fuse plugs and afford anabutment for the door.

he guard member is provided with pes sagesifor the fuse plugs andgrooves in the edges of the passages to facilitate testing.

This application is a continuation in part of my former application99,209, liled April 2, 1926 and whic' 1,740,862, and in which I haveclaimed the general construction of the panel board and particularly thefuse carrier and its adjustable relation to the box, the cover plate theuard member.

Fig. l is a horizontal sectional view of the construction embodying thepres-erred form of my invention. 1

Fig. 2 is a perspective view of the cover plate with the hinged doorpartly open.

Fi 3 is a perspective view of the guard mem r.

These two perspective views show the general relation of the guardmember to the cover plate when these parts are separated.

Fig. 4 is a fragmentary front view of one corner of the cover the doorin place and showing one hinge.

Fig. 5 is a corresponding view of fragments of the cover plate and dooras stamped from asingle sheet or plate of metal and before the hingebearing is affixed.

Fig. 6 is a vertical sectional view showing the complete constructionwith the door part- 1y open and in perspective.

Figs. 1 and 6 show fuse plugs in place.

Fig. 7 is a vertical sectional view of the cover plate and guard memberwith the door closed and omittin the box and fuse carrier.

Fig. 8 is an enfilrged fra mentary horizontal sectional view showm theupper hinge connection for the door, t e door bem shownv in full linesin the partly open pos1 tion and shown in dot and dash lines in thefully. open position.

Fig. 9 is a vertical sectional view of the same hinge bearing with thedoor closed.

The box 10 maybe of any suitable construction in which is mounted afuse'carrier has matured into Patent plate with a fragment of p 11 whichmay be of any suitable construction so far'as the claims herein areconcerned. This fuse carrier 11 supports a number of fuse sockets 12 andmay be rovided with any suitable circuit termina s. The fuse plugs 13are intended to be merely typical of any suitable form of circuitprotecting device.

The front plate or cover 1% for the box is preferably formed of sheetsteel and provided with a swinging door 15 which is normally closed andconceals the fuse plugs 13. The box 10 would, of course, ordinarily bemounted 'in the wall and the outer edges or flange cover plate would besubstantially flush with the'outer surface of the wall.

The guard member 16 is formed of any suitable insulating material and issecured to passages 25 which receive the the cover plate 1 1 by screwsor bolts 17 which pass through openings 18 in the cover 'plate andthrough the lugs 19 in the guard member and are provided with nuts 20for clamping the parts together. These screws 17 are preferablynotslotted but perfectly smooth 'on their outer faces so that it is notpossible to loosen them from the front. 1

The front cover plate is adapted to be secured to the box by a series ofscrews 21 which screw into lugs 22 projecting from the inner wall of thebox. These screws 21 are preferably loosely mounted in the cover plateand may e held from accidental disengagement by washers 23 mounted onreduced shanks of the screws so that when the screws are retracted fromthe lugs 22 they will not fall out.

The guard member 16 is provided with front ends of the screw shells 12for the fuse plugs. Grooves 26 are preferably provided in the sides ofthese passages 25 to admit testing implements.

In the'manufacture of the cover members, the door members 15 arepreferably punched or stamped out of the same plates that form the covermembers 14 and this is accomplished in the following manner: Obviously ablank of this character could not be punched out from a sheet of metaland then set back into the'opening and made to function as a doorwithout some additional operation, in fact it would be very difficult toeven force the blank back into the opening therefore the door is firstpunched out in the form as indicated by the outer lines in Fig. 5, thenthe door blank trimmed so that its outline becomes practically asindicated by the inner lines in Fig. 5 in which form it is slightlysmaller than the opening in the cover and the pintles 30 have beentrimmed to their final form.

The arts are so cutthat thedoor has upper an lower hinge pin or pintleextensions 30 which preferably as shown in Fig. 9, so as to provide anelf edges of the door.

is provided with a recessed is re-punchcd or g are pressed outwardly,

set pivotal axis by means of which the door may be swung open toe thecover late.- The bearing members 32 are stamped I forwardly projectinglugs 31 which receive the pintles of the door and bar portions32' andrivet portions 33 which are preferably headed over to secure the membersin position. The cover plate is cut away or punched out at 34 and 35 toreceive these portions 31 and 33; Of course, the upper and lowerbearings are oppositely disposed to coact with the upper and lowerpintles of the door.

The guard member 16 is provided with flanges 37 to constitute abutmentsfor the These flanges are cut away or grooved at 38 to accommodate thebearing members 32. The cut away portion 39 allows for the swinging ofthe hinged edge of the door.

The door is preferably provided with a springlcatch 41-0, one end ofwhich is secured to the door. The shoulder 41 coacts with the edge ofthe cover plate to hold the door closed. This latch member is alsopreferably provided with a finger piece or extension 12 to facilitaterelease. Preferably the cover plate portion 33 to admit the end of thefinger for releasing the latch.

Panel boards of this character are usually installed in more or lessobscure positions in dwellings or apartments before the lighting circuithas been connected therefore the wireman is considerably hampered in hiswork and' a great advantage of my construction is that all of the coverand guard parts, includingthe attaching screws are completely assembledas a unit and cannot become mislaid or lost and by simply looseningfour.

. sulating material which rests flat against the cover member in such amanner that there can be no possible accessto any of the line terminalsexcept by removing the entire cover' and guard unit. The fiat abutmentof the guard member against the cover makes it possible to hinge a doormember in the plane of the cover member so that the edges of the uardmember form a rabbet for the door and no other parts or formingoperations are required in order to accomplish this result.

It will be noted that the cover screws are positioned at the corners ofthe box in such amanner that, in securing the cover to the box, it ismerely necessary to set the screws into the corners, when by reason ofthe washers 23 and the pointed ends of the screws, the screws are sopositioned that they may then plane parallel withv rom sheet metal andprovided with v be run into the threaded holes in the brackets withoutfishing for the holes.

I claim:

1. A residence panel board construction includin a box, a fuse blocksecured in said box and aving pertinent terminals and pro- Lecting fuseplug shells, a cover for said box aving a fuse door hinged theretoand aninsulating fuse guard member detachably secured to said cover withsecuring means operable only from the rear of said cover, said guardmember having passages to receive and surround said fuse plug shells andhaving continuous integral sidewalls to form a recess for the projectingends-of fuse plugs and said side walls forming an abutment for the saidfuse door in its closed position the parts being so constructed thatwhen the door is open for inspection of the fuses all other conductingparts are covered, and means for detachably securing the cover and guardmember to the box.

2. A residence panel board construction including a box, a fuse blocksecured in said box and having pertinent terminals and projecting fuseplug shells, a cover for said box having a fuse door hinged thereto andan insulating fuse guard member detachably secured to said cover withsecuring means operable only from the rear of said cover, said guardmember having passages to receive and surround'said fuse plug shells andhaving continuous integral side walls to form a recess for theprojecting ends of fuse plugs and said side walls forming an abutmentfor the said fuse door in its closed position, and means for securingthe cover to the box independently of the guard member, the cover andguard member being removable as a unit without disturbing the boxor fuseblock the parts being so constructed that when the door is open forinspection of the fuses all other conducting parts are covered, andmeans for detachably securing the cover and guard member to the box.

3. A residence panel board construction including a box, a coverdetachably secured to said box and having a door mounted thereon, aninsulating guard member detachably secured to said cover and having arecess in register with said door and also having fuse plug passages inthe bottom of said recess, a receptacble mounted within'said box andhaving fuse plug receiving shells projecting into the passages in saidguard member, terminals mounted on said receptacle and adapted fordirect connection with the line wires of a circuit, said guard membercovering the circuit terminals when the door is open for access to thefuse plugs, the said cover and the said guard member being securedtogether and removable as a unit.

CHARLES E. HANNY,

